Plant transport

Question 1

2 structural differences of Xylem and Phloem

Answer 1

Phloem contains companion cells
Xylem has lignin
Xylem has pits
Phloem has sieve plates

Question 2

Tissue that transports water in roots

Answer 2

Xylem

Question 3

How xylem is adapted to transporting water

Answer 3

Continuous/narrow tube
contains pits
lignin

Question 4

Cohesion tension model

Answer 4

Water evaporates from leaf due to transpiration

causes tension to pull water up as well as root pressure pushing it upwards

While flowing cohesion cause water molecule to be attracted to each other

adhesion causes water molecules to be attracted to the walls of the xylem
water can as a result travel up to the shoots

Question 5

Why stomata on bottom of leaf

Answer 5

Reduces water lost to transpiration

Question 5

Why stomata on bottom of leaf

Answer 5

Reduces water lost to transpiration

Question 6

Disadvantage of high transpiration rate

Answer 6

Wilting

Question 7

How water enters through root hairs and passes to vascular tissue

Answer 7

absorbed by root hairs due to osmosis